diff --git a/modoboa/admin/tests/test_export.py b/modoboa/admin/tests/test_export.py
index 5c5f7debd..f7ba5177f 100644
--- a/modoboa/admin/tests/test_export.py
+++ b/modoboa/admin/tests/test_export.py
@@ -1,3 +1,5 @@
+# coding: utf-8
+
 """Export related test cases."""
 
 from __future__ import unicode_literals
@@ -70,11 +72,16 @@ class ExportTestCase(ModoTestCase):
         )
 
     def test_export_simpleusers(self):
+        factories.MailboxFactory(
+            user__username="toto@test.com",
+            user__first_name="Léon", user__groups=("SimpleUsers", ),
+            address="toto", domain__name="test.com",
+        )
         response = self.__export_identities(
             idtfilter="account", grpfilter="SimpleUsers"
         )
         self.assertListEqual(
-            "account;user@test.com;{PLAIN}toto;;;True;SimpleUsers;user@test.com;10\r\naccount;user@test2.com;{PLAIN}toto;;;True;SimpleUsers;user@test2.com;10",
+            "account;user@test.com;{PLAIN}toto;;;True;SimpleUsers;user@test.com;10\r\naccount;user@test2.com;{PLAIN}toto;;;True;SimpleUsers;user@test2.com;10\r\naccount;toto@test.com;{PLAIN}toto;Léon;;True;SimpleUsers;toto@test.com;10",
             response.content.strip()
         )
 
diff --git a/modoboa/core/models.py b/modoboa/core/models.py
index a118d52e2..d728c203c 100644
--- a/modoboa/core/models.py
+++ b/modoboa/core/models.py
@@ -8,7 +8,7 @@ import re
 from django.core.urlresolvers import reverse
 from django.db import models
 from django.utils.encoding import (
-    python_2_unicode_compatible, smart_bytes, smart_text, force_str, force_text
+    python_2_unicode_compatible, smart_bytes, smart_text, force_str
 )
 from django.utils.functional import cached_property
 from django.utils.translation import ugettext as _, ugettext_lazy
@@ -365,14 +365,14 @@ class User(AbstractUser):
         :param csvwriter: csv object
         """
         row = [
-            "account",
-            force_text(self.username),
-            force_text(self.password),
-            force_text(self.first_name),
-            force_text(self.last_name),
-            force_text(self.is_active),
-            force_text(self.role),
-            force_text(self.email)
+            b"account",
+            smart_bytes(self.username),
+            smart_bytes(self.password),
+            smart_bytes(self.first_name),
+            smart_bytes(self.last_name),
+            smart_bytes(self.is_active),
+            smart_bytes(self.role),
+            smart_bytes(self.email)
         ]
         results = signals.account_exported.send(
             sender=self.__class__, user=self)